Nissan Rogue (T33) 2021-Present Service Manual: U1ca2-08 Lin Communication 3

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Manual Air Conditioning :: Dtc/circuit Diagnosis / U1ca2-08 Lin Communication 3

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U1CA2-08

LIN communication 3

(Local interconnect network communication 3) 		Diagnosis condition Ignition switch ON
Signal (Terminal) LIN (door motor) signal
Threshold A/C amp. is not transmitting or receiving LIN communication with each door motor
Diagnosis delay time 2 second or more

POSSIBLE CAUSE

  • Harness and connector (door motor circuit is open or shorted to ground)

  • Each door motor

  • A/C amp.

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine.

  2. Select "Self diagnosis result" mode of "HVAC".

  3. Check DTC.

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK DTC

CONSULT

  1. Start the engine.

  2. Select "Self diagnosis result" mode of "HVAC".

  3. Check following DTC.

    DTC

    Items

    (CONSULT screen terms)     		Reference
    U1CAA-02 Mode door motor DTC Description
    U1CAB-02 Intake door motor DTC Description
    U1CAD-02 Air mix door motor 2 DTC Description

Is DTC detected?

YES>>

Perform DTC diagnosis procedure that is detecting.

NO>>

Replace A/C amp. Refer to Removal and Installation.

    U1ca1-08 Lin Communication 2
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1CA1-08 LIN communication 2 (Local interconnect network com...
    U1caa-02 Mode Door Motor
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1CAA-02 Mode door motor (Mode door motor) Diagnosis conditi...

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